If you have a pacemaker or defibrillator then you may eventually hear the term ERI. ERI stands for Elective Replacement Interval. In other words, your device is close to the end of it’s battery and will need to be replaced soon. Luckily, there is still plenty of time to get the procedure done. ERI usually means the device is getting LOW on battery but there is still energy left for several weeks or months. If your doctor mentions the term EOL that is much more critical. EOL stands for End Of Life and that means the device should be changed out much sooner.

If you are interested in learning some more pacemaker terms, there is a great website that contains a virtual dictionary of the device terms.